I think she died from cancer.
From Goatover
but this is just a wild guess. the show never mentions how she dies. we only know that she died when Miley was young (but she was old enough to remember her mother well).
Chat with our AI personalities
she was 4 years old because in an episode i saw miley on crismas with her mom .
no wat kind of movie wuld it be if she dies in it ?
in the show her mom died not in real life!she died after she became Hannah Montana it clearly states that in suite life on deck with Hannah Montana when she looses the ankelet she says to lilly my mom gave me this before my first show so im not sure how she died but i think she knew she was gonna die cuz in he could be the one the video that her mom was in she said i knew i wouldn't be around so i think it was of cncer or something
Hannah's mom never died.
Brooke Shields plays Hannah Montana's mom on the show.